Search U.S. government technical reports digitized or harvested by TRAIL.
Vibratory compaction of mine hydraulic backfill
Deep mine stress determinations using flatjack and borehole deformation methods
Flexible liners for underground support :applicability considerations and experimental procedures
Design and development of a lightweight recoverable hydraulic prop
Load-displacement measurement in a backfilled stope of a deep vein mine
Relative pressure changes in coal pillars during extraction :a progress report
The incendivity of permissible explosives in coal dust-gas-air mixtures
Effects of planes of weakness on uniaxial compressive strength of model mine pillars
Use of fly ash for remote filling of underground cavities and passageways
Earth pressure at rest and one-dimensional compression in mine hydraulic backfills
Effect of end conditions on determining compressive strength of rock samples
Changes in breaking strength of model rock pillars resulting from end constraint
Three-piece concrete sets for small openings :a progress report
Effect of increasing end constraint on the compressive strength of model rock pillars
The electrohydraulic effect :potential application in rock fragmentation
A systematic analysis of pit slope structures by the stiffness matrix method
Effects of type of cut, delay, and explosive on underground blasting in frozen gravel
Slope stability analysis by the finite element stress analysis and limiting equilibrium method
Mine roof vibrations from underground blasts
Fracturing hard rock with nuclear explosives and extraction of ore by a modified block-caving method
Structural models for the design of mining systems :encasement of strain gage networks in epoxy
A method for estimating strength of rock containing planes of weakness
Mine subsidence--extent and cost of control in a selected area.
Technique of measuring initial deformation around an opening :analysis of two raise-bore tests
Field evaluation of hydraulic backfill compaction at the Lucky Friday Mine, Mullan, Idaho
Analysis of tunnel support structure with consideration of support-rock interaction
The use of rock bolts or wire rope to increase the strength of fractured model pillars
Computer analysis of seismic refraction data
A method for the prediction of stresses in an isotropic inclusion or orebody of irregular shape
A three-minute gas chromatographic analysis of the main constituents of mine atmospheres
The effect of atmospheric pressures on the oxygen level in a sealed mine
Predicting probable roof fall areas in advance of mining by geological analysis
Mine roof vibrations from underground blasts, Pilot Knob, Mo.
Strengthening of fractured rock pillars by the use of small radial reinforcement pressures
Microseismic source locations around block caving at the Climax Molybdenum Mine
Vibrations from underground blasting
A new method of analysis to obtain exact solutions for stresses and strains in circular inclusions
A geometric method for the prediction of stresses in inclusions, orebodies, and mining systems
Polymeric materials for underground support
Support performance of hydraulic backfill:a preliminary analysis
Structural analysis of a coal mine opening in elastic, multilayered material
Mine roof reinforcement by specifically designed epoxy resin systems
Building stoppings in mines with large openings
Elastic-plastic stability analysis of mine-waste embankments